Motor-vehicle.



A. W. WALL.

MOTOR VEHICLE.

APPLIGATION FILED AUG. 7, 1909.

Patented Aug. 2G, 1912 3 SHEETS-SHEET l.

A. W. WALL.

MOTOR VEHICLE.

- APPLICATION FILED AUGJI, 1909.

l. v PatentedAug.20,1912, f l a SHEETS-SHEET z.

A. W. WALL. MOTOR VEHICLE. APPLICATION FILED AUG.7,1909.

' Patented Aug.,20, 1912'.

3 SHEETS-MEET a.' Y

ARTHUR-vv. WALL, 0F BIRMINGHAM, ENGLANB.

Moroni-vertiente.

Specification of Letters Patent,

To aZZ whom t may concern Be. it kn'own tba t`-I; ARTHUR WILLIAMl.'WALL, a subject .ofthe Kingdom of VGreat ing to Motor-Vehicles, ofwhich the v'follow-- ing is a specification.

The present invention relates to starting mechanism for internalcombustion engines,

l and especiallyto engines of that type used on motor cycles, and hasfor its purpose to provide an Aarrangement whereby the' initial strokeof the piston may be imparted through a pedall that is actuated by therider.

The invention has for its further purpose to associate the startingmechanism with the gear casing of the transmission gearing.

i With these and other objects in view thel invention consists in thenovel details of construction and combinations of parts more fullyhereinafter disclosed 'and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of thisspecication in which like characters designate like parts' in all thevie :-Fi'gure 1 shows in two parts a side elevational view disclosingthe application of the invention to the frame of a motor cycle; Fig. 2is an end elevation, partly in `ection, of parts shown in Fig. l; Fig. 3is a top plan view of Fig. 1 with parts. omitted for clearness; F ig, 4is a side elevation, partly in section, of the starting mechanism andassociated parts; Fig. 5 is a View similar to Fig. 4 showing the partsin a different position, andF ig. 6 is a vcrtical sectional view of thetransmission gearing and floating gear casing.

Referring to the constructio-n in further detail A designates the engineand B and B2 the shaft thereof which is connected to be driven from theengine through the medium of beveled gears b and c mounted respectivelyon the transmission shaft B and the engine driving shaft C. The shaft Bis l? itably journaled in a bracketw secured to he casing of the engineA and provided with the usual bearings (see Fig. l). Said driving shaftis connected with the driven shaft B2 through the vtransmission gearingshown in Fig. 6.

\ 1 shows that part of the vehicle frame which is located'near theIusual pedals, and the lower part of the ligure shows the usualconnectionl ofthe vehicle frame with the rear; or driving wheel A disk fis mountedy on the shaft-B and is provided with a pair of cams fdisposed on opposite faces thereof, Aand adapted to l actuate valvecontrolling rods g, it, through the medium of bell crank levers 7.2;Each vof said levers has one arm Zr," thereofadaptedto be engagedV byits respective cani f', and an arm /t-Z adapted to engage with ltsrespective valve controlling rod. Atits forward end the shaft B carriesthe armature of a magneto e ofthe ignition system, as will beunderstood.

The Hoating gear casing Z is mounted ou the transmission shaft (B andB2) at any place within convenient reach of the foot of the driver, apreferred location therefor being that position indicated in Fig. 1.Immediately adjacent-the gear casing Z is a two arm lever (0 and 02)journaled on the shaft B. The arm o of said lever has connected theretoone end of a contractile strap or band n, which band encircles andclosely overlies the periphery of said gear casing. The other end n? ofsaid contractile hand' is connected with the extension of a pedal ortreadle Said pedal 'my is pivotally mounted to an extension o of thelever arm 0. A reti-acting spring m2 is connected at its opposite endsto the arm 0 and pedal m, aud tends to hold said pedal raised and linPatented Augf.20, 1912. Application Ifiled-August 7, 1909.17 Serial No.I.511,736.13

motor vehicle. The upper portion'fof Fig. Y

which position the tension on the contractile band n is released; itbeing understood, of course, that suehtension is applied when thetreadle fm, is engaged by the foot of the driver. The arm 02 isconnected to a iiXed part o4 by a retracting spring o', which springtends to holdv the lever (0, 02) in inoperative position, as illustratedin Fig. 4.

From the foregoing it will he readily seen that by engaging the pedal mand depressing the same, causes the contractile band n to have tightfrictional engagement with the gear casing Z and on the continuedturning movement of the lever (o, o2), said lever assumes substantiallythat position indicated in Fig. 5. From this position the lever will. bereturned to the position shown in Fig. 4 by the action of the spring o.The operation just describedy may, of course, be repeatedit .neessarrAst'op 'p is movably mounted on any con venient part p of the machineframe and is adapted to be moved into or out of the path of the leverarm 02; When moved into the path of said lever the lever is arrested andthe contractile band n is further tensioned against the gear 'casingv Z,thereby holding the latter. for the purpose of bringand in meshV withthe planet pinions b3 and o* respectively. The pinions b3 and b4 aremounted to rotate on the spindle b5 carried by the gear casing Z. Thegear casing Z may be held stationary by means of the brake band n; orrotated from the driven shaft B through the intermediary of the highspeed -clutch band 1' thatv is connected With the member r', which is inturn secured to the sun pinion P.

It is obvious that those skilled in the art may vary the details ofconstruction and arrangement of parts without departing from the spiritof my invent-ion, and therefore I do not wish to be limited to suchfeatures except as may be required by the claims.

What I claim is 1 l. In anfinternal combustion engine, the combinationof a driving and a driven shaft; a transmission gearing connecting saidshafts; a floating gear casing; and means for engaging With saidgearcasing for rorating the same to impart initial movement to thedriving shaft to start the engine, substantially as described. y

2. In an internal combustion engine, the combination of a driving and adriven shaft; a transmission gearing connecting said shafts; a floatinggear casing; a contractile band encircling said gear casing; a fulcrumedlever connected with said band; and a device connected with said leverand band to contract the band to engage with and ro tate the gear casingfor imparting initial movement to the engine, substantially asdescribed.

3. In an internal combustion engine, the

combination of a driving and a driven shaft; a transmission gearingconnecting said shafts; a ioating gear casing; a contractile brake bandencircling said gear casing adapted to -hold the same for effectingvariable speed between said shafts; and means for rotating said bandwhile contracted to engage with and turn the gear casing for impartinginitial movement to the engine, substantially as described.

Losepai 4. In an internal combustion engine, the combination of adriving and a driven shaft; a transmission gearing connecting saidshafts; a floating gear casing; a lever'fulcrumed on the driving shaft;a pedal mounted on said lever; a contractile band encircling said gearcasing and having its ends connected Vwith said pedal and lever, saidpedal adapted to contract the band to engage with and rotate the gearcasingfor im*- parting initial movement to the engine; and a stop forengaging with and holding said lever whereby said band acts to brake thegear casing for effecting variable speed between said shafts,substantially as described.

" 5. The combination with an internal combustion engine having a drivingshaft and a driven shaft; a transmission gear connecting said shafts;and a floating gear casing; of a two-armed lever fulcrumed on thedriving shaft; a pedal mounted on one arm of said lever; a contractileband encircling said gear casing and having its `ends connected withsaid lever arm and said. pedal, said pedal adapted to contract the bandto engage with and rotate the gear asing for im parting initial movementto the engine.; and a device for arresting the other arm of said leverwhereby to contract the band to hold the gear casing for effectingvariable d between said s hafts; and a retraction 'spring connected withsaid leverfor restoring the same toilormal position, substantially asscribed. l

6. The' combinationv with an iiternatcgm'ig bustion engine having adriving and a driven shaft; a transmission gear connecting said shafts;and a floating gear casing forl said transmission gearing; of atwo-armed lelver fulcrumed on the driving shaft; a edal pivotallymounted on one arm 'of said lever; a contractile band encircling saidgear casing and having its ends connected with said lever arm and pedal;said pedal radapted to contract the band toiengage with and rotate thegear casing for imparting initial movement to the engine; a'retractio'nspring for said pedal; a movable stop adapted 'to engage with the otherarm of said lever for holding said lever to contract the band and brakethe gearcasing for eleco ing a variable speed between said shafts; and'a retraction spring connected with said last named lever arm forrestoring said lever to normal position, substantially as. described.'y.

In witness whereof I have hereunto set my hand in the presence oftwo-witnesses. ARTHUR IV. W'ALL.

ISIC

Witnesses:

RowLaND L. GOOLD, WALTER H. E. BARTLAM.

